Amazon’s leaders are known for obsessively monitoring data about almost every aspect of its business. Public relations is no exception.

In late 2016, the executives in charge of the company’s sprawling PR department came up with a system to address the growing exasperation that Jeff Bezos, then the company’s CEO, felt whenever he came across media coverage he viewed as inaccurate. A team within the PR department was tasked with identifying over 90% of media reports that contained information Amazon deemed factually inaccurate within two hours of publication, according to three former employees familiar with the goals of the group.

Additionally, the group was told to obtain corrections on over 90% of those stories. Amazon did, however, make allowances on its deadline for identifying errors for stories published in the middle of the night.